YAML Basics

Overview

  • we will discuss the most relevant YAML features that are necessary when using GiLlab CI

YOUR NOTES

Understanding YAML

  • in this lecture we go over the most important characteristics of the language
  • if we look at yaml in a very simple way, we can say that YAML stores key - value pairs
name: John
  • so this is a variable name with John as a string value
  • we can define numbers, booleans, lists, objects
  • comments: # (number sign)
  • YAML is very similar to another format called JSON (JavaScript Object Notation)
  • try in on your own with this YAML to JSON convertor: https://codebeautify.org/yaml-to-json-xml-csv
  • take the quiz after this lecture to check you understanding of YAML
person:

name: John age: 23 food: - pizza - donuts - coke friend:

name: Joe age: 30 food: null

stuff: [car, my car,bike,stereo]

YOUR NOTES

Using anchors

  • define an anchor with &name
  • use anchor with *name (asterix)
  • anchor a value
  • anchor a key-value pairs

YOUR NOTES